Alfeed bebney



FIG. v.

I WITNESSES:

' (No Model.)

A. BER-NEY.

Spark A rrlester and Co nsum r NO- 239,922.

Patented April 12,1881.;-

i INVNII'UR: W W

N.PE|ERS, PNOTO-LITHOGRAPHDL WASHINGTON h t.

UNITE STATES PATENT OFFICE.

ALFRED BERNEY, OF BOSTON, MASSACHUSETTS, ASSIGNOB TO NATHIEL A.

DUTTON, OF SAME PLACE.

SPARK ARRESTER AND CONSUMER.

SPECIFICATION formingpart of Letters Patent No. 239,922, dated April 12,1881.

Application filed September .13, 1880. (No model.)

To all whom it may concern:

Be it known that I, ALFREDBERNEY, a citizen of the United States,residing at Boston, in the county of'Suffolk and State of Massachusetts,have invented certain new and useful Improvements in Spark Arresters andConsumers; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accom pan yin g drawings, and to letters orfigures of reference marked thereon, which form a part of thisspecification.

'15 My invention relates to spark and smoke arresters and consumers 5and the object is to conduct the solid products of combustion that wouldescape from the ordinary stacks back to the fire-box or furnace,together with hot air and steam, so as to entirely consume them.

The invention consists in the construction and arrangement of parts, aswill be more fully described hereinafter, reference being had to theaccompanying drawings, in which- 2 5 Figure 1 is a longitudinal sectionof a locomotive-boiler with my improvements attached. Fig. 2 is anenlarged cross-section on' line 00 m. Fig. 3 is an enlargedcross-section on line 3 1 Fig. 4 is an enlarged sectional view of thesaddle. Fig. 5 is a modification of stack, with double heating-chamberaround the entire inside of the stack.

In the drawings, Arepresents a-locomotiveboiler, having fire-box orfurnace B, flues O,

3 5 and smoke-arch D, to which the stack E is secured. In the smoke-archare arranged the exhaust-tips a and petticoat or lift pipe b, ofordinary construction.

The saddle F is provided with inclined pas- 0 sages H, which guide thesparks into the tubes G, and has also one or more air-chambers, K, forheating the air. A hole, 0, is cast in the saddle for admitting the airto the pipe at, which is connected to a chamber or receptacle, I,havinga branch-piece to connect with the pipe 0, that leads from thesaddle to it. The chamber I is connected by a thimble, l, to thereturn-fines L, which extend into the furnace B, in which a hood ordeflector, B, is arranged,

to guide the sparks and products down into additional steam-pipe, 122,having its lower end turned upward, may be arranged in the smokearch,to-be used for preventing smoke when the locomotive is standing still.

To the outer flan ge,f, of the saddle the outer I barrel of the stack issecured, while the inner barrel is riveted to the inner flange, g, andto said inner barrel the cone W is secured. The cone has two or morepipes, w, or vanes depending from it, by which the sparks are guideddown through the annular chamber a to the saddle. Above the cone is thenetting a, clamped between the flanges a of the stack. On the inner sideof the outer barrel is cast or secured in any manner a piece of metalform- 7 5 ing an oblong cavity or space, h, which is provided at itsupper end with an opening, 72-, over which may be secured a funnel, ifdesired, or a number of smaller perforations may be employed instead ofone large opening. The space h connects with the opening in the saddleand the pipes below. If desired, the stack may be made double, as shownin Fig. 5, so as to form an annular heating-chamber for the air. Theoperation is as follows: A fire having been made in the furnace andsteam generated sufficient to work the locomotive, a vacuum is formed bythe exhaust-blast from the nozzles a, by which the sparks and other fineparticles and products pass through the flue 0 red hot. These are forcedup through and above the petticoat-pipe into the stack and against thecone W, from where they are thrown down into the annular chamber,:andguided 5 by the inclines on the saddle into the pipes e and chamberI, from whence they are forced, by means of the steam from the pipe is,with the heated air entering through the cavity h, into the furnacethrough the flues L.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. The method herein described of controlling and utilizing as fuel thesparks and unconsumed products of combustion,by combinin g a cone, anannular chamber in the stack, a saddle with inclines, connecting pipeswith an enlarged chamber, and return-fines, through which the productsare driven by a forced blast of heated air and steam, substantially asspecified.

2. The method herein described of arresting the sparks and unconsumedproducts of combustion,consistin g in forcing them through the stack byblasts of steam against a cone or netting, which deflects them into anannular space in the stack, from where they are drawn and forced througha saddle and return-fines, by means of one or more combined heated-airand steam jets, into the furnace, substantially as specified.

3. In a spark-arrester, the combination of an air-cavity, with inlet andoutlet arranged in the front part of the stack, with a saddleplate andreturn-fines, substantially as shown,

and herein described.

, 1 4. The combination, with an air-cavity iii the stack, connected to asaddle having a heatin g-chamber and pipes connecting with an enlargedchamber, into and through which the sparks and products of combustionare drawn and forced, by one or more jets of air and steam, throughreturn-fines into the furnace, substantially as shown and specified.

5. The combination of a blower-pipe with stop-cock, an independentsteam-pipe, and a return-flue to the fire-box, to be used to stop smokefrom a furnace, substantialiy as speci fied.

In testimony whereof I affiX my signature in presence of two witnesses.

ALFRED BERNEY.

Witnesses:

J. MOLEAN LIPSOOMB, LUCIAN OBRIEN.

